Connecting DVI mini-Display Port to Viewsonic VX2025

My ViewSonic VX2235WM-3 Monitor is not detected using an Apple mini-display to DVI connector. At the Apple Store, their Apple display worked perfectly using my adapter. The display works fine with my old iMac DVI output, so I know it's not the monitor. Sent a message to ViewSonic support to see if there were any known issues, but they just responded that I should check with the video card manufacturer.

Looks like it's been awhile since you posted. Did you get it to work?

I have the same monitor with the same problem. The monitor works fine with my daughter's macbook. After a trip to the apple store the guy told me I had a bad dvi cable, so I bought a new one and still nothing on my viewsonic. I called apple support and did some rebooting but still nothing. He kept talking to his supervisors and no one had an answer. He said it should work fine. He sent me back to the apple store where several people took on the issue. The monitor did work with a displayport to vga adapter so I traded in my dvi for the vga but I am not happy about it. I am relieved to see that I am not the only one with this problem. By the way what is dvi-d?

I've also been through apple care support, and transfered between the initial call taker, a supervisor, an engineer, and someone else, but to no avail. I have a Viewsonic VX2235WM-3 monitor, and have now been through two mini displayport to dvi adapters, and two different dvi cables (one dual link, one single). I'm even on my second macbook as I thought it was a faulty computer to start with...

Is this strictly a problem with apple and viewsonic being incompatible? Doesn't make sense to me as this monitor worked just fine with my mac mini... Someone please help, or this mac will go back to the store...

Unfortunately it looks like I'm once again going to have to return this macbook. I thought the last one might have been faulty, but with this being the second one that doesn't work with my monitor, its unfortunately not for me... might have to resort to an older macbook or something else... 😟

I had this same issue with an 18" Wacom Cintiq. After speaking with support on both the Apple and Wacom sides I finally took the monitor into Apple. When it didn't work on any of the MBP in store, there was kind of an "oh crap" moment from the guys who were helping me. I called Wacom the next day and told him that people had been having similar troubles getting Viewsonic monitors to work with the new MBP. He was quiet for a second and then said that both Wacom and Viewsonic get their LCDs from the same company.

So, apparently it's a compatibility issue with the LCDs. The Wacom support person I spoke with also had an "oh crap" moment and said he was going to pass this off to his engineers who would in turn be contacting Apple, since this could potentially suck for both companies. He said he'd keep me updated, so I'll let you guys know if I hear anything new.

I have a ViewSonic VX2035wm display connected to my MacBook Pro - the image on the external monitor shows ghosting and double images like we used to see on old tube TVs.

Here is a post from MacFixIt.com that details my problem.

http://www.macfixit.com/article.php?story=20081020231611468

Late-2008 MacBooks: Image problems on external displays with mini-DisplayPort converters

The new MacBooks and MacBook Pros come with a Mini-DisplayPort adaptor for external video, and Apple supplies various adaptors (DP to DVI, and DP to VGA) to accommodate current monitors. Some users are having difficulties with their adaptors when connected to certain monitors.

Apple Discussions poster Ocell writes:

"I have the exact same problem with my Viewsonic VG2030wm 20" LCD. I've ruled out bad DVI cables. The Macbook Pro works with my 12" Cintiq's display, and the Viewsonic works with my Intel iMac, so the video out/mini displayport adaptor/dvi cable/viewsonic display are all operational. It's just the specific combination of the Macbook Pro and Viewsonic that doesn't work."

This problem has been found to frequently occur with DVI adaptors attached to their computers, however it has also happened with users connecting to the VGA adaptors. In these cases, unlike the DVI situation where no signal gets through, users have noticed the screen blinking or shutting off at random times. While drivers may definitely be suspect, the problem appears to be hardware-related since users have experienced the issue both in Mac OS X as well as in Windows via Boot Camp.

The DisplayPort connections used on the new MacBooks have slight differences in their protocols than other connection types, which allows for expanded functions in smaller connectors, but also can run users into difficulties, especially when older connetion types are used. While there could be software involvement in this problem, it sounds like there's most likely a firmware-related problem that hopefully can be patched by Apple, or at least be accommodated for in a driver update.

Things to Try

Reset the monitor to defaults If there is a method for fully resetting the monitor, try doing that first. Most have a menu option to reset to factory defaults, but in addition there may be a way to fully reset the device such as unplugging it for an extended period of time. This information may be available on the manufacturer's website, or users can just try unplugging the device for an extended period such as 20-30 minutes.

Toggle various monitor setups In the "Displays" system preferences, toggle desktop mirroring on and off to see if the monitor is not just extending the desktop to the second monitor. Especially if users have black wallpaper on their desktops, secondary monitors that are just serving as extended desktops may appear to be off when connected. Alternatively users can try dragging documents off the sides of their main monitor to see if they go over to the second monitor.

Reset the computer Users might try resetting the computer's PRAM (which does contain some graphics parameters) by holding the options, command, P, and R keys down at bootup until the computer resets and makes the boot chimes again. Release the keys and allow the computer to boot normally. Additionally, users might try resetting the computer's system management controller. Here is an Apple Support article on how to do that.

Use a different monitor Unfortunately, with hardware problems such as this users will not be able to do much, so if another monitor is available that works then users should switch to that.

Try another adaptor Many monitors support both VGA and DVI inputs, and there is potential for users to get things working by using another connection type. Additionally, while it may be a long shot, users might also try chaining together various adaptors. For instance, users might try going from displayport to DVI, and then using a DVI to VGA adaptor as the next connection, to see if that somehow sends a proper signal to the monitor.

Thank you very much for all the suggestions!!! I ended up buying a DVI to DVI cable and now the monitor displays the full screen of the Macbook Pro and the picture is much clearer and the colors much sharper!